package comp

import (
	pb "git.wanbits.io/joe/franklin/protos"
	"git.wanbits.io/joe/kettle/utl"
	"github.com/spf13/viper"
	"path/filepath"
)

func LoadConf(fullfile string, defPaths ...string) (*pb.AppConf, error) {
	c := pb.AppConf{}
	dir, f := filepath.Split(fullfile)
	if len(dir) <= 0 {
		dir = "./"
	}

	v := viper.New()
	v.SetConfigType("toml")
	v.AddConfigPath(dir)
	for _, path := range defPaths {
		v.AddConfigPath(path)
	}
	v.SetConfigFile(f)
	err := v.ReadInConfig()
	if err != nil {
		return nil, err
	}

	err = v.Unmarshal(&c)
	if err != nil {
		return nil, err
	}

	err = checkAppConf(&c)
	if err != nil {
		return nil, err
	}

	return &c, nil
}

func checkAppConf(c *pb.AppConf) error {
	if c == nil {
		return utl.ErrForCode(int(pb.ErrCode_INVALID_PARAMS))
	}

	if len(c.Namespace) <= 0 {
		return utl.ErrForCode(int(pb.ErrCode_LENGTH))
	}

	if _, err := Parse(c.Id); err != nil {
		return utl.ErrForCode(int(pb.ErrCode_BAD_FORMAT))
	}

	if len(c.Zoo.Addrs) <= 0 {
		return utl.ErrForCode(int(pb.ErrCode_LENGTH))
	}

	return nil
}